Last record added twice when reading ifstream

#1 March 23rd, 2007, 01:45 PM

Ok, so logically this code seems to make sense but for some reason it
reads the last record twice before hitting eof. Is ifstream.eof()
implementation dependent?

void LoadFile(ifstream &File, List &List)
{
User lUser;
while(!File.eof())
{
File >lUser;
List.insert(lUser,List.nodeCount());
}
}

#2 March 23rd, 2007, 02:05 PM

On 3/23/2007 1:42 PM, Kenneth wrote:

Quote:

Ok, so logically this code seems to make sense but for some reason it
reads the last record twice before hitting eof. Is ifstream.eof()
implementation dependent?
>
void LoadFile(ifstream &File, List &List)
{
User lUser;
while(!File.eof())
{
File >lUser;
List.insert(lUser,List.nodeCount());
}
}
>

Look Here:

http://www.gnomesane.net/code/doc/noteof/

S.
--
Stefan Naewe
stefan_DOT_naewe_AT_atlas_DOT_de

#3 March 23rd, 2007, 02:45 PM

Kenneth wrote:

Quote:

Ok, so logically this code seems to make sense but for some reason it
reads the last record twice before hitting eof. Is ifstream.eof()
implementation dependent?
>
void LoadFile(ifstream &File, List &List)
{
User lUser;
while(!File.eof())
{
File >lUser;
List.insert(lUser,List.nodeCount());
}
}

This is an FAQ (I'd even say one of the most F AQs).
It's answered in the C++ FAQ lite at http://www.parashift.com/c++-faq-lite .

Last record added twice when reading ifstream

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